当我尝试运行项目时出现以下错误，它与setText（）无关由于应用程序在setContentView( R.layout.example );本身崩溃，因此它不再继续。我试过清理并重新启动exlipse它没有帮助，甚至很少有人在StackOverflow中回答相同的问题并没有解决这个问题。
感谢您的帮助。
10-27 17:38:24.441: W/ResourceType(9445): No known package when getting value for resource number 0x7f040000
10-27 17:38:24.443: W/PackageManager(9445): Failure retrieving text 0x7f040000 in package com.example.exp
10-27 17:38:24.443: W/PackageManager(9445): android.content.res.Resources$NotFoundException: String resource ID #0x7f040000
10-27 17:38:24.443: W/PackageManager(9445): at android.content.res.Resources.getText(Resources.java:244)
10-27 17:38:24.443: W/PackageManager(9445): at android.app.ApplicationPackageManager.getText(ApplicationPackageManager.java:994)
10-27 17:38:24.443: W/PackageManager(9445): at android.content.pm.ComponentInfo.loadLabel(ComponentInfo.java:85)
10-27 17:38:24.443: W/PackageManager(9445): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2143)
10-27 17:38:24.443: W/PackageManager(9445): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2257)
10-27 17:38:24.443: W/PackageManager(9445): at android.app.ActivityThread.access$800(ActivityThread.java:139)
10-27 17:38:24.443: W/PackageManager(9445): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1210)
10-27 17:38:24.443: W/PackageManager(9445): at android.os.Handler.dispatchMessage(Handler.java:102)
10-27 17:38:24.443: W/PackageManager(9445): at android.os.Looper.loop(Looper.java:136)
10-27 17:38:24.443: W/PackageManager(9445): at android.app.ActivityThread.main(ActivityThread.java:5086)
10-27 17:38:24.443: W/PackageManager(9445): at java.lang.reflect.Method.invokeNative(Native Method)
10-27 17:38:24.443: W/PackageManager(9445): at java.lang.reflect.Method.invoke(Method.java:515)
10-27 17:38:24.443: W/PackageManager(9445): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
10-27 17:38:24.443: W/PackageManager(9445): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
10-27 17:38:24.443: W/PackageManager(9445): at dalvik.system.NativeStart.main(Native Method)
10-27 17:38:24.443: W/ResourceType(9445): No known package when getting value for resource number 0x7f040000
10-27 17:38:24.445: W/PackageManager(9445): Failure retrieving text 0x7f040000 in package com.example.ex
10-27 17:38:24.445: W/PackageManager(9445): android.content.res.Resources$NotFoundException: String resource ID #0x7f040000
10-27 17:38:24.445: W/PackageManager(9445): at android.content.res.Resources.getText(Resources.java:244)
10-27 17:38:24.445: W/PackageManager(9445): at android.app.ApplicationPackageManager.getText(ApplicationPackageManager.java:994)
10-27 17:38:24.445: W/PackageManager(9445): at android.content.pm.ComponentInfo.loadLabel(ComponentInfo.java:94)
10-27 17:38:24.445: W/PackageManager(9445): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2143)
10-27 17:38:24.445: W/PackageManager(9445): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2257)
10-27 17:38:24.445: W/PackageManager(9445): at android.app.ActivityThread.access$800(ActivityThread.java:139)
10-27 17:38:24.445: W/PackageManager(9445): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1210)
10-27 17:38:24.445: W/PackageManager(9445): at android.os.Handler.dispatchMessage(Handler.java:102)
10-27 17:38:24.445: W/PackageManager(9445): at android.os.Looper.loop(Looper.java:136)
10-27 17:38:24.445: W/PackageManager(9445): at android.app.ActivityThread.main(ActivityThread.java:5086)
10-27 17:38:24.445: W/PackageManager(9445): at java.lang.reflect.Method.invokeNative(Native Method)
10-27 17:38:24.445: W/PackageManager(9445): at java.lang.reflect.Method.invoke(Method.java:515)
10-27 17:38:24.445: W/PackageManager(9445): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
10-27 17:38:24.445: W/PackageManager(9445): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
10-27 17:38:24.445: W/PackageManager(9445): at dalvik.system.NativeStart.main(Native Method)
10-27 17:38:24.448: W/ResourceType(9445): Invalid package identifier when getting bag for resource number 0x7f060001
10-27 17:38:24.511: W/ResourceType(9445): No known package when getting value for resource number 0x7f030002
10-27 17:38:24.610: D/AndroidRuntime(9445): Shutting down VM
10-27 17:38:24.610: W/dalvikvm(9445): threadid=1: thread exiting with uncaught exception (group=0x41679d40)
10-27 17:38:24.614: E/AndroidRuntime(9445): FATAL EXCEPTION: main
10-27 17:38:24.614: E/AndroidRuntime(9445): Process: com.example.ex, PID: 9445
10-27 17:38:24.614: E/AndroidRuntime(9445): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.ex/com.example.ex.LoginRequest}: android.content.res.Resources$NotFoundException: Resource ID #0x7f030002
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2198)
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2257)
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.app.ActivityThread.access$800(ActivityThread.java:139)
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1210)
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.os.Handler.dispatchMessage(Handler.java:102)
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.os.Looper.loop(Looper.java:136)
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.app.ActivityThread.main(ActivityThread.java:5086)
10-27 17:38:24.614: E/AndroidRuntime(9445): at java.lang.reflect.Method.invokeNative(Native Method)
10-27 17:38:24.614: E/AndroidRuntime(9445): at java.lang.reflect.Method.invoke(Method.java:515)
10-27 17:38:24.614: E/AndroidRuntime(9445): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
10-27 17:38:24.614: E/AndroidRuntime(9445): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
10-27 17:38:24.614: E/AndroidRuntime(9445): at dalvik.system.NativeStart.main(Native Method)
10-27 17:38:24.614: E/AndroidRuntime(9445): Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f030002
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.content.res.Resources.getValue(Resources.java:1123)
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.content.res.Resources.loadXmlResourceParser(Resources.java:2312)
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.content.res.Resources.getLayout(Resources.java:939)
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.view.LayoutInflater.inflate(LayoutInflater.java:395)
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
10-27 17:38:24.614: E/AndroidRuntime(9445): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:290)
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.app.Activity.setContentView(Activity.java:1937)
10-27 17:38:24.614: E/AndroidRuntime(9445): at com.example.ex.LoginRequest.onCreate(LoginRequest.java:34)
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.app.Activity.performCreate(Activity.java:5248)
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1110)
10-27 17:38:24.614: E/AndroidRuntime(9445): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2162)
10-27 17:38:24.614: E/AndroidRuntime(9445): ... 11 more